/*
 * Copyright (c) 2024 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import nodeResolve from "@rollup/plugin-node-resolve";
import typescript from "@rollup/plugin-typescript";
import * as path from "node:path";
import * as fs from "node:fs"

const ENABLE_SOURCE_MAPS = true;  // Enable for debugging

/** @returns {import("rollup").RollupOptions} */
function createTarget(sourcePath, targetPath) {
    return {
        input: sourcePath,
        output: {
            file: targetPath,
            format: "commonjs",
            sourcemap: ENABLE_SOURCE_MAPS,
            sourcemapPathTransform: (relativeSourcePath, sourcemapPath) => {
                const sourcemapDir = path.dirname(sourcemapPath)
                let absolute = path.join(sourcemapDir, relativeSourcePath);
                if (fs.existsSync(absolute))
                    return path.relative(sourcemapDir, absolute)
                // For some reason Rollup adds extra ../ to relativeSourcePath, compensate it
                absolute = path.join(sourcemapDir, "extra", relativeSourcePath);
                if (fs.existsSync(absolute))
                    return path.relative(sourcemapDir, absolute)
                console.warn("unable to map source path:", relativeSourcePath, " -> ", sourcemapPath);
                return relativeSourcePath
            },
            plugins: [
                // terser()
            ],
            banner: [
                "#!/usr/bin/env node",
                APACHE_LICENSE_HEADER()
            ].join("\n"),
        },
        onwarn: (message) => {
            if (message.code === 'CIRCULAR_DEPENDENCY') {
                console.error(message)
                // TODO: stop build on circular dependencies.
                // process.exit(-1);
            }
        },
        external: ["commander", "typescript"],
        plugins: [
            typescript({
                outputToFilesystem: false,
                module: "esnext",
                sourceMap: ENABLE_SOURCE_MAPS,
                declarationMap: false,
                declaration: false,
                composite: false,
            }),
            nodeResolve({
                extensions: [".js", ".mjs", ".cjs", ".ts", ".cts", ".mts"]
            })
        ],
    }
}

/** @type {import("rollup").RollupOptions} */
export default [
    createTarget("./src/main.ts", "./build/lib/main.js"),
]

function APACHE_LICENSE_HEADER() {
    return `
/**
* @license
* Copyright (c) ${new Date().getUTCFullYear()} Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

`
}
